// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-generator-function-definitions
es6id: 14.4
description: >
  YieldExpression accepts a regular expression literal as its right-hand side
info: |
  The syntactic context immediately following yield requires use of the
  InputElementRegExpOrTemplateTail lexical goal.
features: [generators]
---*/

function Test() {
    var complete = false;
    var sent = {};
    var iter, iterResult, received;
// Unused variables declared to improve error messages in incorrect parsing
// scenarios.
    var abc, i;
    function* g() {
      received = yield/abc/i;
      complete = true;
    }

    iter = g();

    assert.sameValue(complete, false, 'generator initially paused');
    assert.sameValue(received, undefined, 'first statement no executed');

    iterResult = iter.next();

    assert.sameValue(complete, false, 'generator paused following expression');
    assert.sameValue(received, undefined, 'first statement not executed');

    assert.sameValue(iterResult.done, false, 'iteration not complete');
    assert.sameValue(iterResult.value.test('ABC'), true, 'first iterated value');

    iterResult = iter.next(sent);

    assert.sameValue(received, sent, 'YieldExpression value');
    assert.sameValue(complete, true, 'generator correctly re-started');
    assert.sameValue(iterResult.done, true, 'iteration complete');
    assert.sameValue(iterResult.value, undefined, 'second iterated value');
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
